<!DOCTYPE html>

<head>
    <title>Hello World</title>
    <h1>Hello World</h1>
    <p>This is a simple HTML document</p>

</head>

<body>
    <h1>Hello World</h1>
    <p>This is a simple HTML document</p>
    <a href="https://cn.bing.com">This is a link to bing.com</a>
    <address>
        Written by <a href="mailto:745727212@qq.com"> Goldfish
    </address>
    <!-- <abbr>abbr?</abbr>     -->
</body>